V. Teguh Suharto, et al. “Implementation of a Cooperative Learning Model in 21st Century Indonesian Language Learning in Madiun City Vocational Secondary Schools in 2022 2023 ”. LITERACY : International Scientific Journals of Social, Education, Humanities, vol. 2, no. 3, Dec. 2023, pp. 244-55, doi:10.56910/literacy.v2i3.1222.